HP E1740A time interval analyzer

[davorin]

I just stumbled upon this VXI card as I read a time interval analyzer selection guide from HP.

Can this card also be used to measure precisely a 1Hz clock source and determine the +/- deviation in seconds per year?

[Vgkid]

It is funny you mentioned this module, i was reading the time-nuts post about it. The lack of software tends to make them unuseable.

[davorin]

Where did you read this?

Yes..the E1741A/42A/43A seems to be nowhere available...but I assume it just reads out data via GPIB and does some funny things to it (o;

Well the card is around a quarter of a 5372A in costs and wouldn't occupy shelf space when I already decided on VXI main frame.

[HighPrecision]

The lack of software tends to make them unuseable.

I've reinstalled the software of a E1725B from scratch. Some years back I got bad sectors on HD of the embedded PC (EPC-7) and unfortunately the system VXI drivers, libraries and software was lost, after some hard research on the web I was able to reinstall and configure the full system (on win95/98) 

HP

[davorin]

Kinda old reply..I know (o;

But finally found a cheap E1740A card to play with...

Do you have apointer of the software you could restore your system?


Hmm...I still don't know what's the minimum frequency it can measure...like measuring a 1Hz signal for deviation...

[HighPrecision]

Do you have apointer of the software you could restore your system?

For Win95/98 VXI EPConnect software/drivers (Radsys EPC-7 embedded PC):
ftp://ftp.keysight.com/mpusup/vxi/epcon95/

and the measurement packages:
http://www.leapsecond.com/museum/e1725a/

E1747A is the same as E1741A with the option 'Timing Pattern Analysis'.


E1725A system use an external PC connected to E1406A VXI GPIB controller module and E1740A TI counter, see this document (chapter 2):
www.keysight.com/main/redirector.jspx?action=doc&lc=ita&cc=IT&id=1000004506%3Aepsg%3Adow&ltype=External%20File

in chapter 3 is described a system with embedded PC as my unit (E1725B), I'm not sure if epcon95.exe is valid also for external PC system.

Hmm...I still don't know what's the minimum frequency it can measure...like measuring a 1Hz signal for deviation...

E1740A specifications (page 17-2 of User's Manual E1740-90005) clearly describe maximum sequential TI of 26.2mS (~38Hz), also see page 7-3 and table 7-1.
http://literature.cdn.keysight.com/litweb/pdf/E1740-90005.pdf

[nikodem]

Hi!

Sorry for the post necromancy / archeology.

Did you had any luck with the card? I have a chance to obtain this card with the intention to precisely measure some short periods of time (for Time Correlated Single Photon Counting - TCSPC).